[Hackerrank] Java Output Formatting

java's System.out.printf function can be used to print formatted output. The purpose of this exercise is to test your understanding of formatting output using printf.

 

To get you started, a portion of the solusion is provided for you in the editor; you must format and print the input to complete the solution.

 

Input Format

 

Every line of input will contain a String followed by an integer.

Each String will have a maximum of 10 alphabetic characters, and each integer will be in the inclusive range from 0 to 999.

 

Output Format

 

In each line of output there should be two columns:

The first column contains the String and is left justfied using exactly 15 characters.

The second column the integer, expressed in exactly 3 digits; if the original input has less than three digits, you must pad your output's leading digits with zeroes.

 

Sample Input

java 100
cpp 65
python 50

 

Sample Output

================================
java 100
cpp 65
python 50
================================

 

Explanation

 

Each String is left-justified with trailing whitespace through the first 15 characters. The leading digit of the integer is the 16th character, and each integer that was less than 3 digits now has leading zeroes.

 

formatted : 구성 방식

purpose : 목적

exercise : 연습

portion : 부분

provided : 제공

followed : 뒤를 잇다

inclusive : 포괄적

range : 범위

each : 각각의

justified : 당연한, 이유가있는

expressed : 표현된

digits : 숫자의

less : 더 적은

 

import java.util.Scanner;

public class Solution {

    public static void main(String[] args) {
            Scanner sc=new Scanner(System.in);
            System.out.println("================================");
            for(int i=0;i<3;i++)
            {
                String s1=sc.next();
                int x=sc.nextInt();
                if(x >= 100) {
                    System.out.printf("%-15s%d\n",s1, x);    
                } else if(x >= 10) {
                    System.out.printf("%-15s0%d\n",s1, x);
                } else {
                    System.out.printf("%-15s00%d\n",s1, x);
                }
            }
            System.out.println("================================");
    }
}

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• String와 Int 사이의 공백을 15칸으로 맞춰줘야한다. (printf, %-15s사용)